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E. M. NARAMORE.

Thin-Coupling No. 69,469 Patented Oct. 1, 1867.

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E. M. NARAMORE, OF NORTH UNDERHILL, VERMONT, ASSIG NOR TO HIM- SELF ANDW. M. NARAMORE, OF SAME PLACE.

Letters l atmzt .No. 69,469, dated October 1, 1867.

IMPROVEMENT IN THILL-GOUPLING.

TO ALL WHOM IT MAY CONCERN:

Be it known that I, E. M. NARAMORE, of North Underhill, in the county ofChittenden, and State of Vermont, have invented a new and usefulImprovement in Thill-Coupling; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable those skilled in the art to make and use the same, referencebeing had to the accompanying drawings, forming part of thisspecification.

The object of this invention is to provide a wagon-thill andpole-coupling'that may be readily coupled and uncoupled, and firmly andsecurely held in place; and the invention consists in attaching abed-piece to the axle or forward part of the wagon which shall contain arecess for the knuckle of the pole or thills, and in fastening the sameby a spring-catch, as I will proceed to describe.

Figure 1 is a view of the coupling partly in section, as through theline was of fig. 2.

Figure 2 is a cross-section through the line y 3 of fig. 3.

Figure 3 is a longitudinal section through the line z 2 of fig. 2.

Similar letters of reference indicate corresponding parts.

A is the bed-piece; B is the knuckle which is attached to the thill orpole of the wagon; C is the springcatch by which the knuckle is held inplace. The knuckle P has square ends, as seen in fig. 1, and thebedpiece is recessed out for the square part, as seen in the section,fig. 2. The knuckle is formed of three pieces, (1,6, and c, which areunited together by a screw, d, which is attached to a, as seen in thedrawing. The square portions a and e have heads outside of the bed, asseen in fig. '2. The part I) which is attached to the pole iscountersunk, as seen in the drawing, and the parts a and e are madeconical, to fit the part b, as seen. When the parts are attachedtogether by the screw d, the knuckle thus formed is dropped into therecess in the bedpiece, as seen in fig.- 2. To secure it firmly in placethe spring-catch (l is provided. This catch is attached to the bed-pieceby a broad link, f, which passes around rods or pins The forward portionof this catch-is latched to the bed, as seen in the drawing, andheld inthat position by the spring J, which bears against the link f with aconstant pressure, and thereby keeps the catch in place, as seen infigs. 1 and 3. n is a thumbpiece for drawing back the catch when thethills 0r pole are to be detached.

The construction and operation will be readily understood from thedrawing.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent 1. The bed-piecc A, constructed substantially asdescribed, for the purposes set forth.

2. The knuckle 13, formed of the parts a I] c, in combination with thebed-piece, substantially as described.

3. In combination with the bed A and knuckle I3, I claim thespring-catch G, with its link and spring J, substantially as and for thepurposes herein set forth.

E. Mi NARAMORE.

Witnesses:

M. E. HAneoon, M. M. HILL.

